http://www.youtube.com/watch?v=cZppg7RJjKo#noexternalembed&feature=youtube_gdata_player (http://www.youtube.com/watch?v=cZppg7RJjKo#noexternalembed&feature=youtube_gdata_player)
Old!
You can never have too much horsepower :D
IIRC this is about 600hp/ton...
http://www.youtube.com/watch?v=7sFryk118hI#noexternalembed&feature=related (http://www.youtube.com/watch?v=7sFryk118hI#noexternalembed&feature=related)
Phenomenal. Bet they had a few flies in the teeth after that!